Women are being encouraged to leave their bras at home for today to raise awareness about breast cancer.
National No Bra Day takes place every year on October 13 and falls in the middle of Breast Cancer Awareness Month.
The awareness day started in 2011, and has since grown in popularity, with women using the hashtag #nobraday on social media to support the campaign.
The aim is to raise awareness of the importance of knowing how to carry out breast self-examinations, being able to recognise the symptoms of breast cancer and encouraging women to partake in regular screening.
According to the charity, a shocking 5,000 people will be diagnosed with the disease during the awareness month.